selinux-policy/refpolicy/policy/modules/kernel/kernel.if

## <summary>
##	Policy for kernel threads, proc filesystem,and unlabeled processes and objects.
## </summary>
## <required val="true">
##	This policy has initial SIDs.
## </required>

########################################
## <summary>
##	Allows to start userland processes
##	by transitioning to the specified domain.
## </summary>
## <param name="domain">
##	The process type entered by kernel.
## </param>
## <param name="entrypoint">
##	The executable type for the entrypoint.
## </param>
#
interface(`kernel_userland_entry',`
	gen_require(`
		type kernel_t;
		class process sigchld;
		class fifo_file rw_file_perms;
		class fd use;
	')

	domain_auto_trans(kernel_t, $2, $1)

	allow $1 kernel_t:fd use;
	allow kernel_t $1:fd use;
	allow kernel_t $1:fifo_file rw_file_perms;
	allow $1 kernel_t:process sigchld;
')

########################################
## <summary>
##	Allows the kernel to mount filesystems on
##	the specified directory type.
## </summary>
## <param name="directory_type">
##	The type of the directory to use as a mountpoint.
## </param>
#
interface(`kernel_rootfs_mountpoint',`
	gen_require(`
		type kernel_t;
		class dir mounton;
	')

	allow kernel_t $1:dir mounton;
')

########################################
## <summary>
##	Set the process group of kernel threads.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_setpgid',`
	gen_require(`
		type kernel_t;
		class process setpgid;
	')

	allow $1 kernel_t:process setpgid;
')

########################################
## <summary>
##	Send a SIGCHLD signal to kernel threads.
## </summary>
## <param name="domain">
##	The type of the process sending the signal.
## </param>
#
interface(`kernel_sigchld',`
	gen_require(`
		type kernel_t;
		class process sigchld;
	')

	allow $1 kernel_t:process sigchld;
')

########################################
## <summary>
##	Send a generic signal to kernel threads.
## </summary>
## <param name="domain">
##	The type of the process sending the signal.
## </param>
#
interface(`kernel_signal',`
	gen_require(`
		type kernel_t;
		class process signal;
	')

	allow kernel_t $1:process signal;
')

########################################
## <summary>
##	Allows the kernel to share state information with
##	the caller.
## </summary>
## <param name="domain">
##	The type of the process with which to share state information.
## </param>
#
interface(`kernel_share_state',`
	gen_require(`
		type kernel_t;
		class process share;
	')

	allow kernel_t $1:process share;
')

########################################
## <summary>
##	Permits caller to use kernel file descriptors.
## </summary>
## <param name="domain">
##	The type of the process using the descriptors.
## </param>
#
interface(`kernel_use_fd',`
	gen_require(`
		type kernel_t;
		class fd use;
	')

	allow $1 kernel_t:fd use;
')

########################################
## <summary>
##	Do not audit attempts to use
##	kernel file descriptors.
## </summary>
## <param name="domain">
##	The type of process not to audit.
## </param>
#
interface(`kernel_dontaudit_use_fd',`
	gen_require(`
		type kernel_t;
		class fd use;
	')

	dontaudit $1 kernel_t:fd use;
')

########################################
## <summary>
##	Read and write kernel unnamed pipes.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_rw_pipe',`
	gen_require(`
		type kernel_t;
		class fifo_file { read write };
	')

	allow $1 kernel_t:fifo_file { read write };
')

########################################
## <summary>
##	Read and write kernel unix datagram sockets.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_rw_unix_dgram_socket',`
	gen_require(`
		type kernel_t;
		class unix_dgram_socket { read write ioctl };
	')

	allow $1 kernel_t:unix_dgram_socket { read write ioctl };
')

########################################
## <summary>
##	Send messages to kernel unix datagram sockets.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_sendto_unix_dgram_socket',`
	gen_require(`
		type kernel_t;
		class unix_dgram_socket sendto;
	')

	allow $1 kernel_t:unix_dgram_socket sendto;
')

########################################
## <summary>
##	Receive messages from kernel TCP sockets.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_tcp_recvfrom',`
	gen_require(`
		type kernel_t;
		class tcp_socket recvfrom;
	')

	allow $1 kernel_t:tcp_socket recvfrom;
')

########################################
## <summary>
##	Receive messages from kernel UDP sockets.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_udp_recvfrom',`
	gen_require(`
		type kernel_t;
		class udp_socket recvfrom;
	')

	allow $1 kernel_t:udp_socket recvfrom;
')

########################################
## <summary>
##	Allows caller to load kernel modules
## </summary>
## <param name="domain">
##	The process type to allow to load kernel modules.
## </param>
#
interface(`kernel_load_module',`
	gen_require(`
		attribute can_load_kernmodule;
		class capability sys_module;
	')

	allow $1 self:capability sys_module;
	typeattribute $1 can_load_kernmodule;
')

########################################
## <summary>
##	Allows caller to read the ring buffer.
## </summary>
## <param name="domain">
##	The process type allowed to read the ring buffer.
## </param>
#
interface(`kernel_read_ring_buffer',`
	gen_require(`
		type kernel_t;
		class system syslog_read;
	')

	allow $1 kernel_t:system syslog_read;
')

########################################
## <summary>
##	Do not audit attempts to read the ring buffer.
## </summary>
## <param name="domain">
##	The domain to not audit.
## </param>
#
interface(`kernel_dontaudit_read_ring_buffer',`
	gen_require(`
		type kernel_t;
		class system syslog_read;
	')

	dontaudit $1 kernel_t:system syslog_read;
')

########################################
## <summary>
##	Change the level of kernel messages logged to the console.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_change_ring_buffer_level',`
	gen_require(`
		type kernel_t;
		class system syslog_console;
	')

	allow $1 kernel_t:system syslog_console;
')

########################################
## <summary>
##	Allows the caller to clear the ring buffer.
## </summary>
## <param name="domain">
##	The process type clearing the buffer.
## </param>
#
interface(`kernel_clear_ring_buffer',`
	gen_require(`
		type kernel_t;
		class system syslog_mod;
	')

	allow $1 kernel_t:system syslog_mod;
')

########################################
## <summary>
##	Get information on all System V IPC objects.
## </summary>
## <param name="domain">
##	
## </param>
#
interface(`kernel_get_sysvipc_info',`
	gen_require(`
		type kernel_t;
		class system ipc_info;
	')

	allow $1 kernel_t:system ipc_info;
')

########################################
## <summary>
##	Get the attributes of the proc filesystem.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_getattr_proc',`
	gen_require(`
		type proc_t;
		class filesystem getattr;
	')

	allow $1 proc_t:filesystem getattr;
')

########################################
## <summary>
##	Search directories in /proc.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_search_proc',`
	gen_require(`
		type proc_t;
		class dir search;
	')

	allow $1 proc_t:dir search;
')

########################################
## <summary>
##	List the contents of directories in /proc.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_list_proc',`
	gen_require(`
		type proc_t;
		class dir r_dir_perms;
	')

	allow $1 proc_t:dir r_dir_perms;
')

########################################
## <summary>
##	Read symbolic links in /proc.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_read_proc_symlinks',`
	gen_require(`
		type proc_t;
		class dir search;
		class lnk_file { getattr read };
	')

	allow $1 proc_t:dir search;
	allow $1 proc_t:lnk_file { getattr read };
')

########################################
## <summary>
##	Allows caller to read system state information in proc.
## </summary>
## <param name="domain">
##	The process type reading the system state information.
## </param>
#
interface(`kernel_read_system_state',`
	gen_require(`
		type proc_t;
		class dir r_dir_perms;
		class lnk_file { getattr read };
		class file r_file_perms;
	')

	allow $1 proc_t:dir r_dir_perms;
	allow $1 proc_t:lnk_file { getattr read };
	allow $1 proc_t:file r_file_perms;
')

########################################
## <summary>
##	Do not audit attempts by caller to
##	read system state information in proc.
## </summary>
## <param name="domain">
##	The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_read_system_state',`
	gen_require(`
		type proc_t;
		class file read;
	')

	dontaudit $1 proc_t:file read;
')

#######################################
## <summary>
##	Allow caller to read the state information for software raid.
## </summary>
## <param name="domain">
##	The process type reading software raid state.
## </param>
#
interface(`kernel_read_software_raid_state',`
	gen_require(`
		type proc_t, proc_mdstat_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir r_dir_perms;
	allow $1 proc_mdstat_t:file r_file_perms;
')

#######################################
## <summary>
##	Allow caller to read and set the state information for software raid.
## </summary>
## <param name="domain">
##	The process type reading software raid state.
## </param>
#
interface(`kernel_rw_software_raid_state',`
	gen_require(`
		type proc_t, proc_mdstat_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir r_dir_perms;
	allow $1 proc_mdstat_t:file rw_file_perms;
')

########################################
## <summary>
##	Allows caller to get attribues of core kernel interface.
## </summary>
## <param name="domain">
##	The process type getting the attibutes.
## </param>
#
interface(`kernel_getattr_core',`
	gen_require(`
		type proc_t, proc_kcore_t;
		class dir { search getattr read };
		class file getattr;
	')

	allow $1 proc_t:dir r_dir_perms;
	allow $1 proc_kcore_t:file getattr;
')

########################################
## <summary>
##	Do not audit attempts to get the attributes of
##	core kernel interfaces.
## </summary>
## <param name="domain">
##	The process type to not audit.
## </param>
#
interface(`kernel_dontaudit_getattr_core',`
	gen_require(`
		type proc_kcore_t;
		class file getattr;
	')

	dontaudit $1 proc_kcore_t:file getattr;
')

########################################
## <summary>
##	Allow caller to read kernel messages
##	using the /proc/kmsg interface.
## </summary>
## <param name="domain">
##	The process type reading the messages.
## </param>
#
interface(`kernel_read_messages',`
	gen_require(`
		attribute can_receive_kernel_messages;
		type proc_kmsg_t, proc_t;
		class dir search;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 proc_kmsg_t:file r_file_perms;
	typeattribute $1 can_receive_kernel_messages;
')

########################################
## <summary>
##	Allow caller to get the attributes of kernel message
##	interface (/proc/kmsg).
## </summary>
## <param name="domain">
##	The process type getting the attributes.
## </param>
#
interface(`kernel_getattr_message_if',`
	gen_require(`
		type proc_kmsg_t, proc_t;
		class dir search;
		class file getattr;
	')

	allow $1 proc_t:dir search;
	allow $1 proc_kmsg_t:file getattr;
')

########################################
## <summary>
##	Do not audit attempts by caller to get the attributes of kernel
##	message interfaces.
## </summary>
## <param name="domain">
##	The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_getattr_message_if',`
	gen_require(`
		type proc_kmsg_t, proc_t;
		class file getattr;
	')

	dontaudit $1 proc_kmsg_t:file getattr;
')

########################################
## <summary>
##	Do not audit attempts to search the network
##	state directory.
## </summary>
## <param name="domain">
##	The process type reading the state.
## </param>
##
#
interface(`kernel_dontaudit_search_network_state',`
	gen_require(`
		type proc_net_t;
		class dir search;
	')

	dontaudit $1 proc_net_t:dir search;
')

########################################
## <summary>
##	Allow caller to read the network state information.
## </summary>
## <param name="domain">
##	The process type reading the state.
## </param>
##
#
interface(`kernel_read_network_state',`
	gen_require(`
		type proc_t, proc_net_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 proc_net_t:dir r_dir_perms;
	allow $1 proc_net_t:file r_file_perms;
')

########################################
## <summary>
##	Do not audit attempts by caller to search the sysctl directory.
## </summary>
## <param name="domain">
##	The process type not to audit.
## </param>
##
#
interface(`kernel_dontaudit_search_sysctl_dir',`
	gen_require(`
		type sysctl_t;
		class dir search;
	')

	dontaudit $1 sysctl_t:dir search;
')

########################################
## <summary>
##	Allow caller to read the device sysctls.
## </summary>
## <param name="domain">
##	The process type to allow to read the device sysctls.
## </param>
#
interface(`kernel_read_device_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_dev_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_dev_t:dir r_dir_perms;
	allow $1 sysctl_dev_t:file r_file_perms;
')

########################################
## <summary>
##	Read and write device sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_rw_device_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_dev_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_dev_t:file rw_file_perms;
')

########################################
## <summary>
##	Allow caller to read virtual memory sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
##
#
interface(`kernel_read_vm_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_vm_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_vm_t:file r_file_perms;
')

########################################
## <summary>
##	Read and write virtual memory sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_rw_vm_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_vm_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_vm_t:file rw_file_perms;
')

########################################
## <summary>
##	Do not audit attempts by caller to search sysctl network directories.
## </summary>
## <param name="domain">
##	The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_search_network_sysctl_dir',`
	gen_require(`
		type sysctl_net_t;
		class dir search;
	')

	dontaudit $1 sysctl_net_t:dir search;
')

########################################
## <summary>
##	Allow caller to read network sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
##
#
interface(`kernel_read_net_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_net_t;
		class dir r_dir_perms;
		class file f_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_net_t:dir r_dir_perms;
	allow $1 sysctl_net_t:file r_file_perms;
')

########################################
## <summary>
##	Allow caller to modiry contents of sysctl network files.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_rw_net_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_net_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_net_t:dir r_dir_perms;
	allow $1 sysctl_net_t:file rw_file_perms;
')

########################################
## <summary>
##	Allow caller to read unix domain
##	socket sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_read_unix_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_net_t, sysctl_net_unix_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_net_t:dir r_dir_perms;
	allow $1 sysctl_net_unix_t:file r_file_perms;
')

########################################
## <summary>
##	Read and write unix domain
##	socket sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_rw_unix_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_net_t, sysctl_net_unix_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_net_t:dir r_dir_perms;
	allow $1 sysctl_net_unix_t:file rw_file_perms;
')

########################################
## <summary>
##	Read the hotplug sysctl.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_read_hotplug_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_kernel_t, sysctl_hotplug_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_kernel_t:dir r_dir_perms;
	allow $1 sysctl_hotplug_t:file r_file_perms;
')

########################################
## <summary>
##	Read and write the hotplug sysctl.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_rw_hotplug_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_kernel_t, sysctl_hotplug_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_kernel_t:dir r_dir_perms;
	allow $1 sysctl_hotplug_t:file rw_file_perms;
')

########################################
## <summary>
##	Read the modprobe sysctl.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_read_modprobe_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_kernel_t, sysctl_modprobe_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_kernel_t:dir r_dir_perms;
	allow $1 sysctl_modprobe_t:file r_file_perms;
')

########################################
## <summary>
##	Read and write the modprobe sysctl.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_rw_modprobe_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_kernel_t, sysctl_modprobe_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_kernel_t:dir r_dir_perms;
	allow $1 sysctl_modprobe_t:file rw_file_perms;
')

########################################
## <summary>
##	Read generic kernel sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_read_kernel_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_kernel_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_kernel_t:dir r_dir_perms;
	allow $1 sysctl_kernel_t:file r_file_perms;
')

########################################
## <summary>
##	Do not audit attempts to write generic kernel sysctls.
## </summary>
## <param name="domain">
##	Domain to not audit.
## </param>
#
interface(`kernel_dontaudit_write_kernel_sysctl',`
	gen_require(`
		type sysctl_kernel_t;
		class file write;
	')

	dontaudit $1 sysctl_kernel_t:file write;
')

########################################
## <summary>
##	Read and write generic kernel sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_rw_kernel_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_kernel_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_kernel_t:dir r_dir_perms;
	allow $1 sysctl_kernel_t:file rw_file_perms;
')

########################################
## <summary>
##	Read filesystem sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_read_fs_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_fs_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_fs_t:dir r_dir_perms;
	allow $1 sysctl_fs_t:file r_file_perms;
')

########################################
## <summary>
##	Read and write fileystem sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_rw_fs_sysctl',`
	gen_require(`
		type proc_t, sysctl_t, sysctl_fs_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_t:dir r_dir_perms;
	allow $1 sysctl_fs_t:dir r_dir_perms;
	allow $1 sysctl_fs_t:file rw_file_perms;
')

########################################
## <summary>
##	Read IRQ sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_read_irq_sysctl',`
	gen_require(`
		type proc_t, sysctl_irq_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_irq_t:dir r_dir_perms;
	allow $1 sysctl_irq_t:file r_file_perms;
')

########################################
## <summary>
##	Read and write IRQ sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
##
#
interface(`kernel_rw_irq_sysctl',`
	gen_require(`
		type proc_t, sysctl_irq_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 sysctl_irq_t:dir r_dir_perms;
	allow $1 sysctl_irq_t:file rw_file_perms;
')

########################################
#
# kernel_read_rpc_sysctl(domain)
#
interface(`kernel_read_rpc_sysctl',`
	gen_require(`
		type proc_t, proc_net_t, sysctl_rpc_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 proc_net_t:dir search;
	allow $1 sysctl_rpc_t:dir r_dir_perms;
	allow $1 sysctl_rpc_t:file r_file_perms;
')

########################################
#
# kernel_rw_rpc_sysctl(domain)
#
interface(`kernel_rw_rpc_sysctl',`
	gen_require(`
		type proc_t, proc_net_t, sysctl_rpc_t;
		class dir r_dir_perms;
		class file rw_file_perms;
	')

	allow $1 proc_t:dir search;
	allow $1 proc_net_t:dir search;
	allow $1 sysctl_rpc_t:dir r_dir_perms;
	allow $1 sysctl_rpc_t:file rw_file_perms;
')

########################################
## <summary>
##	Allow caller to read all sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_read_all_sysctl',`
	gen_require(`
		attribute sysctl_type;
		type proc_t, proc_net_t;
		class dir r_dir_perms;
		class file r_file_perms;
	')

	# proc_net_t for /proc/net/rpc sysctls
	allow $1 { proc_t proc_net_t }:dir search;

	allow $1 sysctl_type:dir r_dir_perms;
	allow $1 sysctl_type:file r_file_perms;
')

########################################
## <summary>
##	Read and write all sysctls.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_rw_all_sysctl',`
	gen_require(`
		attribute sysctl_type;
		type proc_t, proc_net_t;
		class dir r_dir_perms;
		class file { rw_file_perms setattr };
	')

	# proc_net_t for /proc/net/rpc sysctls
	allow $1 { proc_t proc_net_t }:dir search;

	allow $1 sysctl_type:dir r_dir_perms;
	allow $1 sysctl_type:file { rw_file_perms setattr };
')

########################################
## <summary>
##	Send a kill signal to unlabeled processes.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_kill_unlabeled',`
	gen_require(`
		type unlabeled_t;
		class process sigkill;
	')

	allow $1 unlabeled_t:process sigkill;
')

########################################
## <summary>
##	Send general signals to unlabeled processes.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_signal_unlabeled',`
	gen_require(`
		type unlabeled_t;
		class process signal;
	')

	allow $1 unlabeled_t:process signal;
')

########################################
## <summary>
##	Send a null signal to unlabeled processes.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_signull_unlabeled',`
	gen_require(`
		type unlabeled_t;
		class process signull;
	')

	allow $1 unlabeled_t:process signull;
')

########################################
## <summary>
##	Send a stop signal to unlabeled processes.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_sigstop_unlabeled',`
	gen_require(`
		type unlabeled_t;
		class process sigstop;
	')

	allow $1 unlabeled_t:process sigstop;
')

########################################
## <summary>
##	Send a child terminated signal to unlabeled processes.
## </summary>
## <param name="domain">
##	The type of the process performing this action.
## </param>
#
interface(`kernel_sigchld_unlabeled',`
	gen_require(`
		type unlabeled_t;
		class process sigchld;
	')

	allow $1 unlabeled_t:process sigchld;
')

########################################
## <summary>
##	List unlabeled directories.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_list_unlabeled',`
	gen_require(`
		type unlabeled_t;
		class dir r_dir_perms;
	')

	allow $1 unlabeled_t:dir r_dir_perms;
')

########################################
## <summary>
##	Read and write unlabeled directories.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_rw_unlabeled_dir',`
	gen_require(`
		type unlabeled_t;
		class dir rw_dir_perms;
	')

	allow $1 unlabeled_t:dir rw_dir_perms;
')

########################################
## <summary>
##	Do not audit attempts by caller to get attributes for
##	unlabeled block devices.
## </summary>
## <param name="domain">
##	The process type not to audit.
## </param>
#
interface(`kernel_dontaudit_getattr_unlabeled_blk_dev',`
	gen_require(`
		type unlabeled_t;
		class blk_file getattr;
	')

	allow $1 unlabeled_t:blk_file getattr;
')

########################################
## <summary>
##	Read and write unlabeled block device nodes.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_use_unlabeled_blk_dev',`
	gen_require(`
		type unlabeled_t;
		class blk_file rw_file_perms;
	')

	allow $1 unlabeled_t:blk_file getattr;
')

########################################
## <summary>
##	Allow caller to relabel unlabeled objects.
## </summary>
## <param name="domain">
##	The process type relabeling the objects.
## </param>
#
interface(`kernel_relabel_unlabeled',`
	gen_require(`
		type unlabeled_t;
		gen_require_set({ getattr relabelfrom },dir_file_class_set)
	')

	allow $1 unlabeled_t:dir_file_class_set { getattr relabelfrom };
')

########################################
## <summary>
##	Unconfined access to the kernel.
## </summary>
## <param name="domain">
##	Domain allowed access.
## </param>
#
interface(`kernel_unconfined',`
	gen_require(`
		type kernel_t, unlabeled_t;
		attribute proc_type, sysctl_type;
		attribute kern_unconfined;
		attribute can_load_kernmodule, can_receive_kernel_messages;
		class dir r_dir_perms;
		class file { rw_file_perms setattr };
	')

	allow $1 proc_type:{ dir file } *;

	allow $1 sysctl_t:{ dir file } *;

	allow $1 kernel_t:system *;

	allow $1 unlabeled_t:dir_file_class_set *;
	allow $1 unlabeled_t:filesystem *;

	typeattribute $1 can_load_kernmodule, can_receive_kernel_messages;
	typeattribute $1 kern_unconfined;

	kernel_rw_all_sysctl($1)
')

################################################################################
#
# Reversed interfaces
#
# The following are reversed interfaces, meaning the point of view of the caller
# of the interface is the object (target) type, rather than the subject (source)
# type, like all other interfaces in the policy.  These interfaces are here to
# decouple policy from the base module, and should not be used anywhere else.
#
################################################################################

########################################
## <summary>
##	Allow the kernel to send a SIGCHLD
##	signal to the specified domain.
## </summary>
## <param name="domain">
##	Domain receiving the SIGCHLD.
## </param>
#
interface(`kernel_sigchld_from',`
	gen_require(`
		type kernel_t;
		class process sigchld;
	')

	allow kernel_t $1:process sigchld;
')

########################################
## <summary>
##	Allow unlabeled processes to send a SIGCHLD
##	signal to the specified domain.
## </summary>
## <param name="domain">
##	Domain receiving the SIGCHLD.
## </param>
#
interface(`kernel_sigchld_from_unlabeled',`
	gen_require(`
		type unlabeled_t;
		class process sigchld;
	')

	allow unlabeled_t $1:process sigchld;
')

########################################
## <summary>
##	Allow the kernel to search the
##	specified directory.
## </summary>
## <param name="dir_type">
##	Directory type to search.
## </param>
#
interface(`kernel_search_from',`
	gen_require(`
		type kernel_t;
		class dir search;
	')

	allow kernel_t $1:dir search;
')

########################################
## <summary>
##	Allow the kernel to read the contents
##	of the specified directory.
## </summary>
## <param name="dir_type">
##	Directory type to list.
## </param>
#
interface(`kernel_list_from',`
	gen_require(`
		type kernel_t;
		class dir r_dir_perms;
	')

	allow kernel_t $1:dir r_dir_perms;
')

########################################
## <summary>
##	Allow the kernel to read the
##	specified file.
## </summary>
## <param name="dir_type">
##	Directory type to list.
## </param>
#
interface(`kernel_read_file_from',`
	gen_require(`
		type kernel_t;
		class dir r_dir_perms;
	')

	allow kernel_t $1:file r_file_perms;
')

########################################
## <summary>
##	Allow the kernel to search the
##	specified directory.
## </summary>
## <param name="dir_type">
##	Directory type to search.
## </param>
#
interface(`kernel_search_from',`
	gen_require(`
		type kernel_t;
		class dir search;
	')

	allow kernel_t $1:dir search;
')

########################################
## <summary>
##	Use the specified types for /lib directory
##	and use the dynamic link/loader for automatic loading
##	of shared libraries, and the link/loader
##	cache.
## </summary>
## <param name="lib_type">
##	The type of the lib directories.
## </param>
## <param name="ld_type">
##	The type of the dynamic link/loader.
## </param>
## <param name="cache_type">
##	The type of the dynamic link/loader cache.
## </param>
#
interface(`kernel_use_ld_so_from',`
	gen_require(`
		type kernel_t;
		class dir r_dir_perms;
		class lnk_file r_file_perms;
		class file rx_file_perms;
	')

	files_list_etc(kernel_t)
	allow kernel_t $1:dir r_dir_perms;
	allow kernel_t $1:lnk_file r_file_perms;
	allow kernel_t $2:lnk_file r_file_perms;
	allow kernel_t $2:file rx_file_perms;
	allow kernel_t $3:file r_file_perms;
')

########################################
## <summary>
##	Allow the kernel to load and execute
##	functions from the specified shared libraries.
## </summary>
## <param name="lib_dir_type">
##	The type of the lib directories.
## </param>
## <param name="shlib_type">
##	Shared library type.
## </param>
#
interface(`kernel_use_shared_libs_from',`
	gen_require(`
		type kernel_t;
		class lnk_file r_file_perms;
		class file rx_file_perms;
	')

	allow kernel_t $1:dir r_dir_perms;
	allow kernel_t $1:lnk_file r_file_perms;
	allow kernel_t $2:lnk_file r_file_perms;
	allow kernel_t $2:file rx_file_perms;
')

#######################################
## <summary>
##	Allow the kernel to send a syslog
##	message to the specified domain,
##	connecting over the specified named
##	socket.
## </summary>
## <param name="socket">
##	The type of the named socket file.
## </param>
## <param name="syslog_type">
##	The domain of the syslog daemon.
## </param>
#
interface(`kernel_send_syslog_msg_from',`
	gen_require(`
		type syslogd_t, devlog_t;
		class lnk_file read;
		class sock_file rw_file_perms;
		class unix_dgram_socket sendto;
		class unix_stream_socket connectto;
	')

	allow kernel_t $1:lnk_file read;
	allow kernel_t $1:sock_file rw_file_perms;

	# the type of socket depends on the syslog daemon
	allow kernel_t $2:unix_dgram_socket sendto;
	allow kernel_t $2:unix_stream_socket connectto;
')

########################################
## <summary>
##	Allow the kernel to send UDP network traffic
##	the specified domain.
## </summary>
## <param name="domain">
##	The type of the receiving domain.
## </param>
#
interface(`kernel_udp_sendfrom',`
	gen_require(`
		type portmap_t;
		class udp_socket { sendto recvfrom };
	')

	allow kernel_t $1:udp_socket sendto;
	allow $1 kernel_t:udp_socket recvfrom;
')